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anonymous

  • 5 years ago

Evaluate the integral: (integral sign) (5 sin xcos xdx)

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  1. anonymous
    • 5 years ago
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    If you can show me how to make the integral notation, I'd be more than willing to run your questions into Maple 14.

  2. amistre64
    • 5 years ago
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    this is do-able :)

  3. amistre64
    • 5 years ago
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    use change of variable... u = sin(x) du=cos(x) dx dx = du/cos(x) 5 u cos(x) du ----------- cos(x) [S] 5u du

  4. amistre64
    • 5 years ago
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    5u^2 ---- + C 2 substitute the u = sin(x) 5sin(x)^2 -------- + C ; but check to see if I m right 2

  5. anonymous
    • 5 years ago
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    Sorry, I know nothing. I'm just a freshman in high school. What are you saying when you write "(integral sign) (5 sin xcos xdx)"

  6. amistre64
    • 5 years ago
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    its calculus

  7. amistre64
    • 5 years ago
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    it means you want an equation that will derive down to "5sin(x)cos(x)"

  8. anonymous
    • 5 years ago
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    Thanks guys! ^_^

  9. amistre64
    • 5 years ago
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    was I right? :)

  10. anonymous
    • 5 years ago
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    Yes you're right ^_^

  11. amistre64
    • 5 years ago
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    yay!!! ..... that means im smart :) now whered I leave my keys......

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